Automatic gas-extinguisher.



' M. w. WEAVER.

AUTOMATIC GAS EKTINGUISHER.

APPLICATION FILED SEPT. 15. 1914.

1,122,827, Patented Dec. 29, 1914.

Elm/newton Myron P1 mavaz,

MYRON W. WEAVER, 0F MONMOUTH JUNCTION, NEW JERSEY.

AUTOMATIC GAS-EXTINGUISHER.

Specification of Letters Patent.

Patented Dec. 29, 1914..

Application filed September 15, 1914. Serial No. 861,748.

To all whom it may concern:

Be it known that I, MYRON W. WEAVER, a citizen of the United States, residing at Monmouth Junction, in the county of Mid dlesex and State of New Jersey, have invented certain new and useful Improvements in Automatic Gas-Extinguishers, of which the following is a specification. My invention relates to improvements in automatic gas extinguishers, the object of the invention being to provide an attachment for gas burners which will shut off a supply of gas automatically if the light is accidentally blown out or otherwise extinguished.

A further object is to provide an attachment of the character described which can be connected to any ordinary gas burner, and which will permit the ordinary operation of the burner, yet will promptly shut off the supply of gas in the event of the light becoming accidentally extinguished.

WVith these and other objects in view, the invention consists in certain novel features of construction and combinations and ar rangements of parts as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings: Figure l is a view in side elevation partly in section illustrating my improvements. Fig. 9. is a view in section on the line 22 of Fig. 1, and Fig. 3 is a perspective view of the tripping lever shown on an enlarged scale.

1 represents a gas bracket to which the ordinary shell 2 is connected and supports at its upper end a tip 3 having a transverse slot 41 therein as is customary for the flow of gas which is ignited at the tip and burns in the ordinary wa v To the shell 2, I secure my improved bracket 5 by means of a split clamp 6, preferably integral with the bracket and clamped around the shell 2 by means of a bolt 7 and nut 8. The bracket 5 is provided in its outer end with an inclined hearing 9 in which a rod 10 is adapted to slide. This rod 10 is positioned at an angle as shown clearly in Fig. 1, and at its upper end supports a cup 11 which is adapted to fit over the tip 3 and entirely shut off the supply of gas when said cup is moved downwardly upon the tip. 12 represents a coiled spring which is located around the rod 10 below the bracket 5', and this coiled spring bears at its upper end against a washer 13 positioned against the lower face of the bracket 5, and at its lower end bears against a gut 14L screwed onto the lower end of the ro The spring 12 is of sufficient elasticity to draw the cup 11 down upon the tip 3, and hold it securely thereupon. The bracket 5 is provided with an upright 15 having at its upper end, a nozzle 16. This nozzle 16 has a comparatively wide entrance end located. beside the tip 3 adjacent one end of the slot 4, so that the gas which escapes from the tip will be directed through the funnel 16 against a cup 17 on the upper end of a tripping lever' 18. This lever 18 is pivoted between its ends on a pin 19 projected through a bifurcated lug 20 on upright 15, and at its lower ends, the said tripping lever is bifur cated as shown at 21, straddling the rod 10 and adapted to be positioned under pins 22 on the opposite sides of the rod.

Anti friction rollers 23 are preferably provided on the pins 22 so as to permit the ready release of the rod, and consequently enable the tripping lever to be moved by the pressure of gas. To nicely balance the tripping lever, I preferably provide a weight 33 on the lower end of the lever, adjustably secured thereon by means of a screw 24, so that the parts can be so arranged as to require but very slight gas pressure to compel their release.

As shown in Fig. l, the cup 17 is normally over the outlet end of the nozzle 16, and during the ordinary operation of the burner, the parts will remain thus positioned. However, as soon as the fiame is accidentally extinguished, the gas will rush in all directions through the slot 4 in tip 8, and the pressure will be suflicient to cause the tripping lever to move, and release the rod 10, when the spring 12 will draw the cup 11 over the tip 3 and shut off the gas. It will be noted that the tripping lever has its bifurcated end 21 so located that the extreme ends only of the tripping lever touch the rollers 22, hence a very slight pressure is all that is necessary to move the tripping lever, so that its ends pass inside of the centers of the rollers when the pressure of spring 12 will complete the movement by reason of the cam action of the rollers against the tripping lever, hence the parts can be nicely adjusted and can be so arranged that even though the pressure of gas be slight, it will be sufficient to accomplish the purpose. The

' the bracket and weight 23, furthermore, permits the lever 18 to be balanced, so that it can be readily operated by the pressure of gas.

Various slight changes might be parts described without departing from my invention, and hence I do not limit myself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A device of the character described, comprising a bracket adapted to be secured to a burner, a spring-pressed rod carried by having a cup at its upper end adapted to be moved over the burner and shut off the supply of gas, a spring exerting downward pressure on the rod, and a tripping lever operated by the pressure of gas, said tripping lever constructed to hold the rod and cup in an elevated position, substantially as described. 7

2. A device of the character described,

comprising a bracket adapted to be secured to a burner, a springpressed rod carried by the bracket and having a cup at its upper end adapted to be moved over the burner and shut off the supply of gas, a spring exerting downward pressure on the rod, a nozzle supported on the bracket and in position to receive the gas as it is discharged from the burner, and a tripping lever, said tripping lever having one end engaging the rod, normallyholdingthe latter in an elevated position, and its other end in line with the nozzle and adapted to be moved by the pressure of as, substantially as described.

,A device of the character described, comprising a bracket adapted to be'secured to a burner, a spring-pressed rod carried by the bracket and having a cup at its upper end adapted to be moved over the burner and shut ofi' the supply of gas, a springexerting downward pressure on the rod, a tripping lever operated by the pressure of gas, said tripping lever constructed to hold the rod and cup in an elevated position, said rod having rollers at opposite sides, and said tripping lever having a bifurcated end, the members of which engage under the rollers substantially as described.

i. A device of the character described, comprising a bracket adapted to be secured to a burner, a springpressed rod carried by the bracket and having a cup at its upper Gopies of this patent may be obtained for made a 1n the general form and arrangement of ping lever having one end engaging normally holding the latter in an elevated end adapted to be moved over the burner and shut off the supply of gas, a spring exerting downward pressure on the rod, a nozzle supported. on the bracket and in position to receive the gas as it is discharged from the burner, a tripping lever, said tripping lever having one end engaging the rou, normally holding the latter in an elevated position, and its other end in line with the nozzle and adapted to be moved by the'pressure of gas, said rod having rollers at opposite sides, and said tripping lever having a bifurcated end, the members ofwhich engage under the rollers, substantially as described.

5. A device of the character described, comprising av bracket adapted to be secured to a burner, a spring-pressed rod carried by the bracket and having a cup at its upper end adapted to be moved over the burner and shut off the supply of gas, a spring ex erting downward pressure on the rod, a nozzle supported onthe bracket and in position to receive the gas as it is discharged from the burner, a tripping lever, said tripthe rod,

position, and its other end in line with the nozzle and adapted to be moved by the pressure of gas, said rod havmg rollers at opposite sides, and said tripping lever having a bitlurcated end, the members of which engage under the rollers, and a weight adjustably secured on the lower portion of the tripping lever, substantially as described.

6. is. device of the character described, comprising a bracket, a clamp securing the bracket on the burner, an upright on the bracket, a rod located at. an incline and movable through the bracket, a cup-shaped extinguisher on the upper end of the rod, a spring on tl16'lOG1' end of the rod exerting downward pressure thereon, a nozzle on the upper end of the upright in position to receive the gas as it escapes from the burner, a tripping lever pivoted between its ends on the upright, a cup on the upper end of the tripping lever located in front of the nozzle, pins on the rod, and said lever having a bifurcated lower end straddling the rod and engaging under the pins, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

MYRON \V. WEAVER. Witnesses W IRA T. LYKER, NICHOLAS H. VREELAND.

five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

